Improvement in street-lamps



J' S. WOOD.

STREET-LAMP. -No.173,396. Patented .Tune 6,1876.

In @a nar.-

NAPETERS. PHOTO-LITNOGRAPHER, WASHINGTON. D C

UNITED STATES PATENT QEEICE.`

JOSEPH S. WOOD, OF NEW YORK, N. Y.

IMPROVEMENT IN STREET-LAMPS.

Specification forming part of Letters Patent No. 178,396, dated June (i, 1876 application filed April 4, 1876.

To all whom it may concern Be it known that I, JOSEPH S. Woon, of the city, county, and State of New York, have invented a new and Improved Street-Lamp, of which the following is a specication:

In the accompanying drawing, Figure l represents a side elevation of my improved streetlamp with the glass set into the frame. Fig. 2 is a side view of the frame with the glass detached; Fig. 3, a detail vertical central sec tion of the burner of the lamp.

Similar letters of reference indicate correspondin g parts.

The object of my invention is to utilize the glass-supporting frames of street lamps or lanterns for the purpose of holding the oil and feeding it, under suitable pressure, to the point of combustion, so as to generate the gas or vapor required for the lame.

The invention is further intended to arrange the oil-holding tubes in such a manner that open spaces are formed for the transparent signs with the names of the streets. placed thereon, which may thereby be clearly and distinctly seen and read.

The invention consists, mainly, of the arrangement ot' an oil-reservoir below the burner, which is connected with the glass-supporting frame, made of hollow tubing, of any shape, and of two ring-shaped connected tubes, one above the other, at the top part of the frame, between which the transparent signs are placed. The oil is fllled through an opening of the uppermost ring-shaped tube, and fed to the burner by the internal pressure of the gas generated by the heating up of the same.

In the drawing, A represents a street-lamp that is constructed of a number of upright tubes, B, that form the glass-supporting frame or basket. The upright tubes B support at the upper ends a horizontal ring-shaped tube, B, which is connected, by short tubes, with a second ring-shaped tube, B', placed at some distancefrom the lower one. The rin g-shaped tubes B B' form a space, C, between them, for inserting the transparent signs that indicate the names of the streets. The ring-shaped tubes may, however, be made of flat, tapering, or triangular shape, to be utilized as reflectors--in that case inserted near the outer end.v

The upright tubes B connect at their lower ends with the oil-reservoir H, from which, by a central connecting-tube, the burner is fed. The tubes B B and reservoir H are filled with oil through top apertures of the uppermost ring, the oil being fed gradually to the burner by the pressure ot the gas generated in the reservoir by the heating up of the lower burnertube, which pressure sustains the oil in the tubes B, and feeds the same gradually to the burner. A socket, D, below the oil-reservoir, serves to attach the lamp to the post. The burner is composed ot' two disk-shaped sections, E and F, which are screwed together by means ofV threaded circumferential flanges. The lower section F of the burner has perforations or jet-holes g around the central tubular part, through which the gas passes out for the purpose of heating up the lower part of the burner and generating the gas required for illumination by the burner-tube ot' the upper section. One or both sections E and F are provided with central seats or bosses I, that will come closer together or form a wider space between them, according as thel sections are screwed together or apart. In screwing down the upper half until the seats come in contact the supply ot' gas to the jet-holes is entirely cut oft', and thereby the jet or heating dame extinguished. The jet-holes are drilled large enough so that they are not liable to be clogged by soot or other impurities. The ame at the lower disk-section ofthe burner is made larger or smaller, according to the amount ot' heat required at different temperatures, a larger heating-ame being required in winter than in surnmer for the purpose of generating the gas for illumination at the upper burner. A cap, J, is

Preferably placed over the burner when the illu 'l 2. Aglass-supportingframeforstreetlamps, disk-section of the burner, having a central made of oil-holding tubes, with horizontal projecting seat, I, and jet-holes, with a reguring-sbaped top tubes forming spaces for the lating top section screwing thereon, to heat up transparent signs, substantially as described. the gas-generating tube and supply the gas 3. The combination of the oil-holding glassto the illuminating-burner, substantially as supporting tubes, and of the oil-reservoir at and for the purpose specified. the lower part, with an adjustable heating and illuminating burner to generate gas to JOSEPH S. WOOD. sustain the oil in the tubes and feed it gradu- Witnesses: ally to the burner7 substantially as described. y FORMAN WHITNEY,

4. The combination of a lower stationary DAVID BROWN. 

